Union



L. ONDERDONK.

5 Shets-Sheet 2.

. '(No Model.)

SEWING lszrA'cEuNE.l No. 547,675'.

'Patented ont. 8, 1895.

.m w wM/wd (No. Model.)

. Sheets-Sheet 4. L.l ONDERDONK.

SEWING MACHINE.

. Patented Oct. 8

w'lTN EssEs INVENTOR L. ONDBRDONK.

SEWING MACHINE.

Y 'N0547,675. y. Patented oet. 8i 1895.

UNITED STATES PATENT OFFICE.

LANSING ONDERDONK, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE UNIONSPECIAL SEWING MACHINE COMPANY, OF CHICAGO, ILLINOIS.

y -sEwI Nc-MAGH'IN E.

SPECIFICATION forming part of Letters Patent No. 547,675, dated October8, 1895.

l' Application filed December-9,1892. Serial No. 454,648. (No model.) i

I To all whom i may concern..-

Be it known that I, LANSING ONDERDONK,

a citizen of the United` States, residing at Boston, in the county ofSuffolk and State of Massachusetts, have invented certain new and usefulImprovements in Sewing-Machines, of which the followingA is adescription, reference being had te the accompanying drawings, and tothe letters and figures of referlence marked thereon.

My invention relates to an improvement in sewing-machines; and itsprincipal object is to provide a machine for use in the sewing of shoesfor placing the rows of stitches on the vampsv of mens shoes. In suchwork it'is de- -sirable that the bed-plate of the vmachine be o fcylindricalform, in order that the work may more properly fit thereover,and .hence the present invention is an improvement upon what is known asa cylinder vamping-ma-4 chine.

while the machine is designed principally for use in sewing shoes, itwill be understood that it maybe used forall purposes where a work abovementioned.

hornyor cylinder, over which the goods are placed to be sewed, issubstituted for the ordinary dat bed-plate.

Generally speaking, the present invention has been designed to adapt thewell-known Union S pecial.,Sewing-Machine to the class of The inventiontherefore consists in themat- 'ters hereinafter described, and referredto in the appended claims.

' My invention is illustrated in the accompany'ingdrawings, in which* fI i 'Figure l is a perspective'view of a sewing- .machine constructedin' accordance with my.l

Fig. 2 is aside elevation, the cymechanism. Figs.' 8 and9 are'sectionson the lines 8 8 and 9 9, respectively, of Fig. 3,1ooking in thedirectionv of the arrows. Fig. 10 is a perspective of aportion of `thecasing with the various parts shown in an enlarged form. Fig. 1l is adetail view showing the manner of attaching the upper part of the casingat its forward end. Fig. 12 is a side elevation of the front end of thefeed-shaft carrying the feed-dog supporting-frame. Figs. 13 and 14 varerespectively plan and side views in detail of the looper rocker andshaft." I

In the drawings, A is the standard baseplate secured to a bench or tablein any suitl" able manner. I y

B is the over-hanging arm or goose-neck of the machine.

D is the needle-arm pivoted on the goosei neck and provided with adownward extension a, to which the looper-rod is attached in theordinary manner.

c is the belt-wheel, to which power is applied in thev usual way. Thisis carried on the'end of the lnain shaft of the machine, the needlearmbeing rocked by a suitable eccentric d and connecting-rode. Secured tothe standard or base-plate is the cylindrical casing E, the lower rearend of which F fits on a ledge f onl the base-plate and issecured-thereto.

This cylindrical casing is enlarged at its rear end to accommodate theparts, such as the rotary-take-up, &c., which extend above the plane ofthemain shaft. The upper part of the casing is removable and at itsfront is provided with a downwardly-projecting pin h, which fits a 4slotformed in a cut-away portion 'z' of th'ccasing, as shown in Fig. 11. Infront of the removable plate and upon projectingv edges of the casing issecuredthe throat-plate H of the' machine, curved to conform to thecylindrical casing and having the necessary slots for the passage of theneedle or needles and feed-dog. The end ofthe cylindrical casing isclosed by a conical-shaped cap j, hinged tothe lower part of the casing.It will thus be seen that when the upper plate or cover is in positionand the cap shut the cylindricalI casing is entirely closed and acts asa workplate for the .goods to be sewed. The cover of the cylinder at therear end isl ppovided with a pin k, adapted to register with a vslot inthe clamping-piece Z, pivoted to the upwardly-eXtendiug enlarged part ofthe lower portion of the casing.

The needle-arm D is provided with the ordinary thread-eyelets and isattached to the needle-bar L bya link connection m. .I have herein shownthe needlebar as carrying two needles set closely together and held fromlateral deflection by the guidefoot a on one side andthe roller-presserfoot M on the other side, the guide-foot being attached to the ordinarypresser-foot bar N, while the rollerpresser foot is of the usualconstruction, supported by the supplemental presser-bar O. Theneedle-bar`and presser-bars reciprocate in guides carried by thegoose-neck of the machine, and upon a post o, extending vertically fromthe top thereof, is supported an oilcup y), from which oil Vis fed to apiece of y sponge or other absorbent material, which keeps the needle-threads lubricated. Longitudinal deflection of the needles is prevented bythe needle-guard P, secured upon the under side of the curvedthroat-plate, as shown in Fig. 6, and the guard-finger traveling inunison with the looper.

The operative parts of the machine for aeting on the lower thread andfeeding forward the material are located within the cylindrical casingE.

The main shaft Q is journaled near its outer end in a suitable bearingon the standard of the machine and carries the ordinary beltwheel c. Itextends lengthwise of and into the casing and at its inner end isjournaled in a bearing in the standard q, carried by the cylindricaleasing.

Near the inner end of the casing upon the main shaft is located therotary take-up R, composed of the cam-shaped disks made in one piece,with a collar secured to said shaft and stationary throw-ott S, thethread being.

compelled to ride over the edges of the disks by the guides r r, theguides and stationary throw-off being securedlwithin the enlarged partof the cylindrical casing. In the rotation of the disks the straightedges thereof catch the portion of thread between the guides and carryit up with them (thereby taking up the slack from the looper) until thethrow-off replaces it, at which time the looper is ready for anotherforward impulseand not only draws the slack thus temporarily taken careof by the take-u p, but a stitchlength in addition. Actuated from themain shaft byau eccentric thereon working in a fork s is a shaft T, towhich the fork is secured, said shaft having a bearing in the lower partot' the standard q and in a second lng or standard q near the front ofthe cylinder. As shown in dotted lines, Fig. 6, and in detail in Figs.13 and 14, this shaft T isA formed with an extension T', to which thecrank t, which carries the looper u, this crank being connected` vby awith the end of the looper-rod u', connected is pivoted," ball-jointwith the needlearm extension. The pivotal` connection of the crank twith the shaft T is made by providing the extension or head T with aconical or ball projection, over which a socket in the looper-crank tfits. It will thus be seen that in the movement of the main shaft thelooper-rod will bereciprocated back and forth, thus reciprocating thecrank to which the looper is attached backward and forward, and at thesame time the shaft T will be rocked, thus' giving the said crank asidewise movement, and owing to the balljoint connection between thecrank and the end of the looper-rod both movements are allowed to takeplace. To a lug or standard on the inner end of the looper rock-shaft Tare attached two springs 1l o', extending vertically, which are broughttogether to clasp the thread between them at the proper intervals bycontact ofthe spring o with the upwardly-projecting arm U, secured tothe casing. When the looper begins its forward movement and the springsrock away from the arm U, they automatically open and free the thread,which can then be drawn by the looper without resistance. In thebackward movement of the looper, however, the springs rock toward theprojecting arm U and are closed, thereby gripping the thread and holdingit tight during the said backward movement of the looper.

- Connected to the looper-crank and moving in unison withthelooperrocker is the guardfinger w, of ordinary construction, betweenwhich and thelooper the needles pass in the forward movement of thelooper, thus preventing deflection of the needles in that direction,while the guard on the thr0atplate guides the needles on the side onwhich it is located.

I will new proceed to describe the feeding mechanism used on my machine,for which I make no claim in this applieatiompe;1 se, the same beingclaimed in an application filed by me inthe United States Patent Officeon the 9th day of December, 1892, Serial No.454,647.

1 represents a shaft running nearly the whole length of the cylinder andhaving bearings in the standars q g on the inside of said cylinder.This'shaft has fixed to it two arms 2, forming a fork, between whicharms a cam 3 on the main, shaft revolves, thereby oscillating saidshaft 1. At its outer end the shaft 1 is provided with a curved arm 4,fixed to it and forming an extension thereof beyond the cylinder proper.At its outer end 4this curved arm is provided with an opening,withinwhich is placed a stnd,shaft, or pin 5, to which said curved armisrigidly attached. At a point near the center of the cylinder the shaft 1is provided with a laterally-extemling lug or standard G, rigidlyattached `to it, so that it, together with the curved arm 4, rocks withthe shaft 1. This lug 6 is provided also with a stud, shaft, or pin 7,so4 arranged as to be approximately in line with the stud or pin 5, asshown in Fig. 12. Loosely mounted on the IIO izo`

frame.

studs or pins 5 and 7 is the rocking crank- This consists of threeparts, the forward longitudinal arm 9, to which is removably secured thedovetailed groove 10, the shankpllof the feed-dog l2, curved to conformto the shape of the cylinder and extending up through an opening in thethroat-plate H, the short connecting part 14, and t-herearwardlyextendingV longitudinal arm 15. This crankframe is preferablymade all in one piece.

While I have shown the part 9 of the crank as provided with lugs 16 16,having openings fitting over the studs or pins 5 7, it will beunderstood that the studs or pins may be secured to the arm 9 and passloosely through the openings on the lug 6 and curved arm 4. Therearwardly-extending part 15 of the frame is provided with an opening inwhich is secured the stud or shaft 17. Upon one end of this shaft ismounted, so as to swing thereon, one end ofthe crank 18,which has asplit bearing at its opposite end encircling a sleeve 19 surrounding theaxial stud pin or shaft 20, such sleeve being held from longitudinaldisplacement by the nut 2l on the threaded end of the shaft or pin 20.This shaft or pin 20 is herein shown as provided at its inner end with acircular enlargement or head which is fitted in a slot 22, formed in acrank-disk 23,

attached to the end of the main shaft. This s'lot is formed with acontracted front opening, so that the head of the stud 20 is preventedfrom longitudinal displacement. To permit of adjustment of the stud 20in the slot, and thereby vary the throw 'of the crankA 18, I

have provided a screw'24, which passes' through the head of the stud 20.The screw is secured to the crank-disk by means of the clamping-plate25, having a slot which fits the screw beneath the head thereof, saidclamping-plate being secured to the .periphery of the crank-disk byscrews 26, as shown. To

'accomplish the adjustment of the stud 2O without changing the positionof the screw 24 with respect to the crank-disk I have provided saidscrew with a collar 27 just below the clamping-plate 25, so thatlongitudinal movement of kthe screw 24 is prevented by the head andcollar, respectively, so that in the vturning of the screw the head onthe stud 2O will be moved up or down,thus changing the point ofconnection of the crank-disk in the main shaft with the crank 18,thereby altering the throw vof said crank and varying the amount offorward and backward movement of the rocking frame and feed-dog. It willbe readily understood, therefore, that by reason of the rockingconnection of the feed-dog carrying-frame witl the shaft 1 and'the'crankconnection of said frame with the main shaft that the vertical andforward and lbackward movements of the feed-dog are effected, and alsothat by the adjustment of the head of the stud or bolt 20 in theslot ofthe crank-disk the amount of throw of the rocking frame is varied, and.thereby the length of stitch regulated.l v

`Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. A sewing machine comprising a cylindrical casing, a main shaftextending within the same, feeding and looper shafts also arranged`within the casing and oscillated from the main shaft, one of saidshafts being arranged in a plane to one side of the main shaft, butparallel therewith, and the other in substantially the same verticalplane as the main shaft, a rocking feed dog carrying frame pivoted toand entirely supported by the feed shaft and operatively connected tothe main shaft, and a looper connected to the looperl shaft;substantially as described.

2. A sewing machine comprising a main shaft, acylindrical casing intowhich the main shaft extends, a feed operating shaft driven from themain shaft, a third shaft extending below the main shaft with itsforwardendin advance of the forward end of the main shaft, withconnections between the main shaft and the third shaft for operating thelatter, and a looper connected to the forward end of the third shaft androcked thereby; substantially as described.

3. A sewing machine comprising a main shaft, a cylindrical casing intowhich the main lengthwise of the casing, parallel with and shaftextends, a second shaftextending lengthwise of the casing and parallelwith the main shaft but the forward end in advance of the forward end ofthe main shaft, connections between the main shaft and the second shaftfor operating the latter, a rocking feed dog frame pivotally connectedto and entirely supported by the second shaft, a third shaft extendinglengthwise of the casing and parallel with and belowthe main shaft, withits forward end in advance of the forward end of the main shaft, withconnections between the main shaft and the third shaft for operating thelatter and alooper connect-ed tothe forward end of the third shaft androcked thereby; substantially as described.

4. In asewing machine, suitable stitch forming mechanism, acylindricalcasing enlarged vat one end, feeding and looper mechanisms containedwithin said casing and a rotary take up mechanism supported intheenlarged portion; substantially as described.

5. A sewing machine comprising a cylindrical casing entirely closed onits under side, and having a plurality of standards therein, a removabletop plate curved to conform to the shape of the cylinder extendingthroughout the length thereof, a hinged cap for said cylinder, a mainshaft, looper rocker shaft and feed shaft journaled in the respectivestandards and extending lengthwise of and within the casing, whereby theparts are compactly arranged, easy of access, but only from the top orend; substantially as described.

6. A sewing machine comprising a cylindrical casing, amain shaftarrangedlengthwise thereof and extending within the same, a rock TOO IIO

shaft entirely within the casing, a looper rocker connected to saidshaft and extending at right angles thereto with means for reciprocatingsaid looper, a second rock shaft independent of the first withconnections between 4it and the main shaft, a feed dog carrying framepivotally connected to the second rock shaft and oscillated thereby withindependent connections between said frame and the main shaft, saidmain, looper and feed shafts being arranged so that the main shaft andthe pivot points of the feed dog carrying frame and looper rocker willbe in substantially the same vertical plane which passes through thelongitudinal axis of the main shaft, whereby the parts may be compactlyarranged within a minimum space; substantially as described.

i 7. Asewing machine comprisingacylindrical casing, a main shaftextendinglengthwise of and within said casing, a looper mechanism alsowithin the saine, a removable top platefor said casing, a taperinghinged end cap, a feed shaft curved at its outer ond to conform to theAshape of the hinged end cap and rocking feed dogcarrying frame pivotedat one end with the curved portion of the feed shaft, and complementalstitch forming mechanism; substantially as described.

8." In a sewing machine, a suitable standard and a cylindrical casingforming the bed plate of the sewing machine, resting at its inner endupon and secured to said standard and extending laterally therefrom,said cylindrical casing being provided with a removable top plate curvedto conform to the periphery of the cylindrical casing, and having aconical hingedv end cap, whereby the working parts within the bed plateare easy of access and tubular articles may be readily placed over` thebed plate of the machine; substantially as described.

9. A sewing machine comprising acylindrical casing, a main shaftextending lengthwise of said casing and within the same, an under threadcarryinglooper provided with a guard finger, a feeding mechanism, all ofsaid parts being contained within the easing, a throat plate, curved toconform to the shape of the casing, provided with a needle guard,complemental stitch forming mechanism, and means forrcciprocating thelooper and its guard nger lengthwise of the casing; substantially asdescribed.

l0. In a sewing machine the combination with the main shaft, feed shaft,looper shaft and means4 for operating the same, the feed and loopershafts extending parallel with and in advance of the forward end of themain shaft, and the looper shaft carrying a conical projection at aright angle thereto, of a feed dog carrying frame supported by the feedshaft and operatively connected to the main.

shaft, a looper and looper carrier supported by said conical projection,and means for oscillating the looper carrier inthe direction of thelength of the looper; substantially as described. y

1l. A sewing machine comprising a cylindrical casing having an enlargedrear portion, a stationary abutment within said enlarged portion, alooper rock shaft extending lengthwise of and within said casing, a pairof'vertical nipper springs .carried by the rear end of said shaft andwithin said enlarged portion, and Voperating against said abutment;subtantially as described.

12. In asewing machine a cylindrical casing forming a bed plate, acomplemental stitch forming mechanism, said bed plate comprising thelower part within which the feeding and looper mechanisms and a portionof the main shaft are supported, an upper removable plate having anupward extension at its rear end, and the rotary take-up mechanismoperating therein, a curved throat plate secured` to the lower part ofthe casing,`and provided with openings for the passage of the needlesand feed dogs; substantially as described.

13. In a sewing machine, a cylindrical casing forming the bed plate ofthe machine', suitable stitch forming mechanism, said bed platecomprising a lower part within which certain parts of the stitch formingmechanism are supported, and open at its top, a removable topplateadapted to cover said opening curved to conform te the shape of thecylinder, and

la cap having a cylindrical rim fitting against the end of the cylinderfor closing the same; substantially as described.

14. In a sewing machine in combination with the cylindrical casing, amain shaft extending lengthwise of the casing, a feed operating shaftarranged below and to one side the main shaft with its forward end in advance of the forward end of the main shaft,

connections between the main shaft and the feed operating shaft foroscillating the latter, a feed dog rocking frame pivoted to the feedshaft with connections between said rocking frame and the main shaft, alooper rocker shaft arranged below the plane of the main shaft with itsforward-end in advance thereof, said looper rocking shaft being alsobelow the plane of the feed operating shaft, a looper rocker pivoted tosaid looper-rocker shaft and extending at right angles thereto, a looperattached to said rocker and means for oscillating the looper;substantially as described.

15. In a sewing machine and in combination, the main shaft, thecylindrical casing into which the main shaft extends,l said main shaftbeing arranged in the upper portion of the cylindrical casing, a feedoperating shaft arranged adjacent to the side of the casing and with itsforward end in advance of the forward end of the main shaft, a rockingframe pivotally connected to the second shaft whereby in the movement ofthe second shaft the frame is rocked up and down, a feed dog carried bythe rocking frame, and a connection betweensaid rocking frame and thefor- IlO ward end of the main shaft whereby the feed I for reciprocatingsaid iooper lengthwise of ro -dog is given a forward and backwardmovethe easing; substantially as described.

ment, a third shaft arranged in the bottom 1n testimony whereof I affixmy signature part of the casing in substantially the same in presence oftwo witnesses.

vertical piane as the main shaft but with its forward end in advance oftheforward end I LANSING ONDERDONK of said main shaft, a looper arrangedon the Witnesses:

' inside of the casing opposite the feed shaft CHARLES LETTS,

and pivoted to the said third shaft, with means JOHN W. CONERSE.

